A popular biomass briquette emerging in developed countries takes a waste produce such as sawdust, groundnut shell etc compresses it and then extrudes it to make a reconsistuted log that can replace firewood. It is a similar process to forming a wood pellet but on a larger scale. There are no binders involved in this process. The natural lignin in the wood binds the particles of wood together to form a solid. Burning a wood briquette is far more efficient than burning firewood. Moisture content of a briquette can be as low as 4%, whereas green firewood may be as high as 65%. Use of biomass briquettes can earn carbon credits for reducing emissions in the atmosphere. Biomass briquettes also provide more calorific value/kg and save around 30-40 percent of boiler fuel costs.
Depends on consumers requirment.
